Keithley 6430 Instruction Manual page 196

9-20 Sweep Operation
Table 9-4 lists the command sequence for the diode programming example.
Table 9-4
Staircase sweep programming example (diode test)
Command
*RST
:SENS:FUNC:CONC OFF
:SOUR:FUNC CURR
:SENS:FUNC 'VOLT:DC'
:SENS:VOLT:PROT 1
:SOUR:CURR:START 1E-3
:SOUR:CURR:STOP 10E-3
:SOUR:CURR:STEP 1E-3
:SOUR:CURR:MODE SWE
:SOUR:SWE:RANG AUTO
:SOUR:SWE:SPAC LIN
:TRIG:COUN 10
:SOUR:DEL 0.1
:OUTP ON
:READ?
1
This command should normally be sent after START, STOP, and STEP to avoid delays caused by rebuilding
sweep when each command is sent.
2
For single sweep, trigger count should equal number of points in sweep: Points = (Stop-Start)/Step + 1. You
can use SOUR:SWE:POIN? query to read the number of points.
Custom sweep commands
Table 9-5 summarizes remote commands used for custom sweep operation. See Section 17,
Configure list, for more details on these commands.
Table 9-5
Custom sweep commands
Command
:SOURce:CURRent:MODE LIST
:SOURce:VOLTage:MODE LIST
:SOURce:LIST:CURRent <list>
:SOURce:LIST:CURRent:APPend <list>
:SOURce:LIST:CURRent:POINts?
:SOURce:LIST:VOLTage < list>
:SOURce:LIST:VOLTage:APPend <list>
:SOURce:LIST:VOLTage:POINts?
:SOURce:SWEep:RANGing <name>
Description
Restore GPIB default conditions.
Turn off concurrent functions.
Current source function.
Volts sense function.
1V voltage compliance.
1mA start current.
10mA stop current.
1mA step current.
Select current sweep mode.
Auto source ranging.
Select linear staircase sweep.
Trigger count = # sweep points.
100ms source delay.
Turn on source output.
Trigger sweep, request data.
Description
Select current list (custom) sweep mode.
Select voltage list (custom) sweep mode.
Define I-source (list = I1, I2,... In).
Add I-source list value(s) (list =I1, I2,...In).
Query length of I-source list.
Define V-source list (list = V1, V2,... Vn).
Add V-source list value(s) (list =V1, V2,...Vn).
Query length of V-source list.
Select source ranging (name = BEST, AUTO, or FIXed).
1
2